/**定义通用颜色和方法*/
@c1:#fcffe6;
@c2:#f4ffb8;
@c3:#eaff8f;
@c4:#d3f261;
@c5:#bae637;
@c6:#a0d911;
@c7:#7cb305;
@c8:#5b8c00;
@c9:#3f6600;
@c10:#254000;


@g1: #ffffff;
@g2: #fafafa;
@g3: #f5f5f5;
@g4: #f0f0f0;
@g5: #d9d9d9;
@g6: #bfbfbf;
@g7: #8c8c8c;
@g8: #595959;
@g9: #434343;
@g10: #262626;
@g11: #1f1f1f;
@g12: #141414;
@g13: #000000;
.rel() {
    display: block;
    position: relative;
    height: 100%;
}